EKG Basics | How to Read & Interpret EKGs: Updated Lecture

[@arthurlandissavingu6886]

Never have I been taught ECG in my five years of medical school like this. This is easily the best lecture on ECG basics by far. God bless you sir.

[@johndalton4559]

interesting, this is exactly how our prof taught us

[@Antoniooo1206]

@@johndalton4559 good for you

[@Antoniooo1206]

@@uniquevirals9901 Hahahahaha, why shouldn't I?

[@poeticmeditationsbyyaffa]

Like for real!!!

[@pdmech73]

a lot of grad school programs are not created equally. you kind of have to teach yourself.

[@christiandad5920]

Seriously.... it's like having your own private tutor. Whatever instilled in you to gift your time and knowledge to the rest of us for FREE!! I thank you. God bless mate. Much love from Australia.

[@NinjaNerdOfficial]

Zach, Kristin, and Rob were all tutors while in school, and came to understand that creating videos of lectures would be a boon for students around the world! Thanks for being part of that community! - TG

[@christiandad5920]

@@NinjaNerdOfficial thanks for creating this community. I've been reading all the comments and you guys are really doing so much good in this world. God knows we need it. Probably would of done med if I'd met you guys 20 yrs ago, chose nursing instead, so still able to help people. 😉 keep it up, alot of people are going to be alot more competent because of you guys.

[@srividhyanarayanan7337]

​@@NinjaNerdOfficialsir,thank u soo much (respect from India)

[@athuddriver]

I'm a 68 year old dude wanting to understand some of my heart rhythm issues. Call me an enginerd that loves understanding the technicals of what I'm looking at. Kinda tired of the cardiologist not helping me truly understand what we are looking at. This presentation really helped me understand how my Kardia Mobile works. It also lets me have a greater understanding of my doctor's 12 lead machine read out. It isn't going to make me a medical tech nor a cardiologist but it levels the playing field to talk intelligently with my cardiologist. As a person that managed training in a technical field (air traffic control) I applaud your use of visuals, retracing concepts and building on them from start to finish. WELL DONE!

[@kir3303]

I hope you are okay

[@anji962]

All the best to you, sir.

[@tendenzafashion]

Your cardiologist also made basic concepts from this video.

[@Damn-wg3tn]

😊

[@Zzzzzzzzzzzz56]

God bless you

[@paulael9610]

If there was a Nobel prize for education, it would have to go to Zach and Ninja Nerd team (every year). One of the most useful channels on youtube ever. Thank you for all your work

[@menelfg1163]

After almost 10 years of studying medecine, NOBODY beats this Guy. He is a true Hero

[@yezzypops]

Zack makes EKGs bearable. I learned a lot tonight, especially that, "The left ventricle BE THICCC." I will never forget that, Zack. Thank you, sir.

[@marokisho4841]

😂😂😂

[@khalassoo]

HAHAHA

[@MobinaMob-gp1yp]

PLEASE LMAO

[@AFRICANDIVA]

NEVERRRRRRRRR...!

[@juliapieper6704]

Zach said one sentence, that really stuck with me throughout the whole video: "I got you". And that is exactly it. Whatever the question or problem in understanding you might have... Once you finish a video you feel like all is crystal clear and easy. Thank you so much for that passion all of you have at the Ninja Nerd Team!

[@tarunmahananda901]

You're creating thousands of doctors with your each lecture . Thank you so much professor

[@serinegs8325]

You are incredibly pedagogical , you are meant to do this , this is your vocation and what a vocation ! ...thank you so much for sharing with students all over the world especially those who don't have access to good quality courses and can't provide enough books to build an overview ...you have no idea how much they are grateful

[@haiwatigere6202]

Serine gs( what a name) agree with you totally. But I want to thank you for teaching me pedagogical. It's an apt description for this man. He is teaching from the left field

[@ahmedabdallah2002]

Yes of course I'm one of these student who they don't have good quality course I really struggle and now I completely depend on his lectures I can't tell him how grateful I'm 🙏🙏

[@rezareza1195]

Watch Dr. Najeeb lectures. This is a copy of those..

[@salsajuan317]

@@rezareza1195 Dr. Najeeb and Zach Murphy's style of teaching is the same; graphical description....not necessarily a copy of the other, they just use similar techniques to help understand the concepts better. And call me crazy, but if I can get the same quality course and ease of understanding without paying a subscription fee, I think I'd lean to the no-cost option.

[@rahulmandal8410]

Thanks a lot sir, following u from 2018🙏

[@queeniezhang1184]

I've struggled with understanding EKG for such a long time and have watched countless tutorials, but yours is the only one that finally made it click for me! Can't express how grateful I am!

[@floriankordowske7341]

How in the world did this dude just manage to explain EKG a thousand times better in on hour than any professor at medical scool did in 2 years… thank you so much

[@LRotter42]

Thanks from a MXC Chicago nursing student!

[@NinjaNerdOfficial]

Thanks for your support!

[@sangasiren]

YOU ARE MY UNOFFICIAL MED SCHOOL PROF RIGHT NOW. I'm like whenever I don't understand anything: Don't worry, zach will save me 😅

[@arthurd228]

00:15 Understanding the basics of EKGs, including the physics and physiology. 01:56 Understanding EKG deflections based on flow of charges. 05:46 Understanding the direction of positive charge movement in EKG leads 07:44 Lead II is the focus in this example, showing the axis from negative to positive. 11:42 Understanding atrial depolarization and SA node involvement 13:34 Understanding the PR segment and PR interval 17:20 Understanding depolarization vectors in EKG 19:16 Understanding EKG wave deflections 22:25 Understanding the QRS vector in EKG interpretation 23:59 Mean QRS vector and positive deflection in lead 2 27:27 Ventricular depolarization and direction of charge flow 29:08 Understanding the isoelectric line in the ST segment 32:44 Explanation of how charges flip within myocardium 34:32 Understanding EKG deflections and their indications 38:01 Understanding the placement of EKG leads. 39:34 Lead one, lead two, lead three all point in the same direction. 42:54 Understanding EKG leads for heart regions 44:38 Understanding augmented unipolar limb leads for EKG interpretation. 48:00 Understanding the direction of movement in EKG waveforms. 49:37 Understanding the relationship between negative and positive electrodes in EKG interpretation. 53:06 Understanding different EKG leads' significance 54:43 Understanding precordial leads importance and placement on chest 58:03 Understanding the progression of the R wave and S wave in EKG leads V1 to V6. 59:41 Understanding R wave and S wave relationship in EKG interpretation 1:03:10 Understanding EKG deflections based on electrode movement 1:05:02 Understanding the progression of R wave and S wave in the precordial chest leads 1:08:24 Elevations in v5 and v6 may also be seen in avl, indicating issues with the entire lateral wall of the left ventricle. 1:10:07 EKG width and height measurements 1:13:54 Understanding the measurements of ST segments is crucial for interpreting EKGs 1:15:49 Understanding PR and QRS intervals in EKG interpretation

[@soniamejia5684]

I see a day where you’re going to have 10 million subscribers! The best channel!

[@razzanhh7817]

Dude, I wish he could get 100 millions, he is so amazing 🤩 There is no single channel out there that explains things at such a high level of quality of filming, editing and of course the drawings that clarify the whole issue… I love this channel 💕

[@leelakrishan7453]

Yes you are right

[@leelakrishan7453]

@@razzanhh7817 yeah you are right , there is no other channel like this

[@dr.jeelkakadiya1111]

this channel deserves this💙

[@froglegs4910]

@@razzanhh7817 Amazing clarity explanation for EKG !

[@MsDemonism]

This man is a genius, and I wish I had this level of refinement in my thoughts; he never stumbles and remembers all the terminology and the details involved with every term or concept. Crazy.

[@gegeeh.a8328]

I have never been more thankful for an education resource in my entire life! thank you so much. It's because of how clearly and wonderfully you explain things that I am able to find joy in continueing my degree!

[@vitalgist]

This is the best EKG lecture I have seen in my 2 decades of medical practice. well done

[@kevin23226]

I have been reading EKG's for 10 years. This is by far the best presentation I have seen! You make life easier for quite a few people! Bravo! Bravo! Bravo!

[@jaimiedickinson788]

I can't express how grateful i am for you professor murphy!! I am a year 4 med student and this is my FIRST time - my FIRSTTT time - actually understanding how the ECG actually works. 20 minutes in and I KNOW that this is the video that is going to save my ass in clinical years. Thank you so so much!! Hands down the BEST ECG video out there :) When I earn my first paycheck in the future, I will be sure to donate it to your patreon!!!

[@ogunsolumariam5352]

Doc

[@rebeccahodges5376]

I have been a nurse 25 years and a nurse practitioner 9 years. Your ability to break things down and teach them is gift beyond words. 25 years and I actually now understand how a 12 lead EKG really works. I am so grateful for you! You have a fan and follower for life. Thank you for being a phenomenal teacher.🥰 You make learning FUN.

[@savindrachathu7653]

I have been in this career for almost 8 years now, I have never seen anyone explaining ECG this way! Amazing as always!

[@kipkipour4507]

It's past midnight... I am still reading for my exams... I am tired. Thank you for your help all those lonely nights, NINJA NERD!!!

[@lacatrass]

how it's going buddy?

[@thatdancinggirl9882]

Haha me too, I'm watching is at 1:41 AM 2 weeks before the german version of USMLEs, and you made me feel less alone

[@delrosariorose4369]

Thank you for sharing your gift of teaching 🥰🥹 This is actually my FIRST TIME understanding EKG and I just graduated from med school 🫠 You’re better than most of my professors. May God bless you! THANK YOU. ❤

[@shepherdess.9938]

7 minutes in and ive learned so much than I've ever had in my 7 hours lecture series . thank you so much

[@humansloth4096]

Amazing! Notice how he does the entire lecture in one take. Just shows how well this guy knows the material. Excellent teacher!

[@ReemHamasha]

You're truly gifted Zak. The goal is to excel at an aspect of my life the way you excel at this. Thank you big time

[@mariaabbasi2813]

I don't know why my university teachers don't teach like this. You are great, the only rescue!

[@rickyhechevarria4611]

Currently in medic school and you have helped me sooo much in this hour alone

[@joshuahall6983]

Same!

[@RameshAv-dr1kz]

Dr. Zach, this is the best EKG lecture I have ever heard. And the best part is, it is hardly 80 min video. I tried very hard and invested so much time to learn the basics of EKG previously from various other sources but never understood it this clearly. I donno what's driving you and your team to invest so much time and energy to make all of these videos for FREE, but please keep up this good work. Thanx a lot to you and your team Dr. Zach!

[@shoreshidoshi]

You truly are gifted - I am so thankful you took the time to do this and that I was able to find you - I have learned more from you in about 90 minutes than I did in 5 days of old-school lectures.

[@RAMANIBRO]

Thank you 🎉❤

[@monicasantiago6996]

My professors could never teach as well as you do. Keep up the good work! Love you guys!!

[@AmnaEjaz-vw4dk]

Hands down the best video on ecg.....nothing can top this....5thy yr mbbs student ,went thru so many sources to understand how the ecg wave looks the way it does....none explained it the way ninja nerd hass....really appreciate ur content for us medicose

[@acevedoyadi]

I remember one of my professors teaching me this with vectors in a 30 minutes lecture during clinical rotations. He was the tyrannical, but I loved him for teaching me so much. I totally forgot all about it obviously and couldn’t find such a great explanation. Thank you for this.

[@johnandjennydoan2120]

You're just amazing at teaching. Please don't ever stop. Thank you from the bottom of my heart.

[@yaglicious]

This is the first video of yours that I have watched. From the bottom of my being, I thank you for putting in the time and effort to create this invaluable resource. As a medical student with ADHD, who is still trying to figure out how to study and learn, I cannot begin to express how much this video has clarified the given subject for me. I learn best when I have an understanding of a concept's foundation and why things are the way they are, and this has provided that for me. Again, thank you so much! I truly owe you my life.

[@leonardOoAugusto]

I have had several teachers in my life, but none as didactic as you. Even though it's not my language, I can learn a lot. Thank you so much for sharing this knowledge with us. Hugs from Brazil

[@daniellesoileau5234]

OMG where have you been all of my life?!!!!! You are hands down THE BEST teacher EVER!!!!!!! Thank you so much for helping me understand EKG better than I ever thought I would!!!

[@sarahmorris1404]

I have been a physician for 30 years and actually laughed out loud at this video…love it, “let’s fire baby🔥 “Thank you for these videos!

[@JB-hs5cs]

That left ventricle be thiccc. With that facial expression. I enjoy his lectures and they’re brilliant with their content, but it’s the little bits that always take me by surprise where it’s like he’s chilling with friends and the topic is his favourite thing, like he’s discussing sports or something he did on vacation with friends and I can’t help but laugh. Without the humour I wonder how easy the long lectures would be, but with them they’re a breeze. What a charismatic lecturer. I’ve not been a physician as long as yourself but I come back to these when I want to brush up on some basic science, and I expect I will for years to come. How brilliant.

[@andidresner4604]

I’m a retired RN, and these videos help me remember all what I learned from years gone by. Thank you.

[@rimarima6767]

You're saving my life... My cardio's exam is near n was about giving up then your vdo came out ...it was a relief man!... I would never thank you enough ❤... Thank you so much... You deserve 10M for your astonishing lectures

[@neilmiller2936]

one of the best videos on EKGs/ECGs I've ever seen. Thank you so much.. I recommend this clip to many students, apprentices and people who want to develop their practice, thank you :)

[@wahidsadique8112]

Thank you so much.When i find ninja nerd Videos on Difficult topics,i feel happy and don't worry anymore

[@queteimporta7049]

One of the best videos of KZbin

[@raflirizaldy3540]

Just got my medical doctor degree yesterday and found ur channel today. Should’ve found this channel a lot sooner, it’ll help a lot! Thanks

[@kingcos19]

rewatching during my overnght shift on the floor -- but i could honestly have you teach me everything. very well spoken, well organised, groovy, and informative. not to mention educational!!!! so glad you exist! take care

[@lilfefeop5856]

Professor Zach u and ur team are legends of all youtube, we really appreciate ur afforts, thank you so much.

[@askask7468]

Seriously , you are a lifesaver! Your teaching ability is a rare gift. I am so grateful for your well-structured classes.

[@nitajohn9710]

This is the first time that I actually understood the mechanics behind ecg Thank you so much You’re literally a life saver

[@queteimporta7049]

It has been 3 years and I am still impressed on how simple this man made the ecg.

[@Prog47]

It actually took me a whole semester to learn all these! This lecture is invaluable for revising! Thanks so much you are amazing at teaching!

[@dezmein2580]

Amazing in medic school and this videos deserves a reward. No instructor or book explained it like this

[@mr.scientifictemper3056]

wow ,im a medical student from india this really helps ,sir. Its a one stop solution to EKG.

[@chelsiebrooks9804]

I'm planning on going to school soon for an EKG technician and the way you explained the waves and segments on an EKG is excellent. Thank you for sharing.

[@ImS2Brov2]

“Hey baby, I’m gon fya, I’m gon send some action potentials” 😂😂😂

[@oluwadamilolarofiat9190]

😂😂😂😂.

[@astrid-w5z]

This is why I love Prof Zach 😂

[@ACompassionateHeartSchool]

Thank you, guys ❤️

[@NinjaNerdOfficial]

Thanks for your support!

[@izzahflipsthetable7336]

I remember watching Ninja Nerd in first year of med school and I learned the EKG from the old version video, and I came in the practical prepared. My friend was completely weirded out like how the heck did you know this? Because yall taught your lessons more detailed than the lectures I got at Uni XD It was super nice to know things in detail because you really understand it. Thanks Ninja Nerd

[@brent212cburg]

when through nursing school and 6 years as a nurse before I came across your channel. i am in NP school now and I really wish I would have had this resource when I was in nursing school. even when you know the outcome and interpretations of EKG's, i could have never explained it to another person like this. amazing

[@buttercup141312]

Man… I was so lost in my lecture from a few hours ago and I said “It’s ok. I have Ninja Nerd.”. I sat in the library working through this video and drawing everything out, pausing periodically to work it out then check and now I’m explaining it to colleague who were having trouble with it as I was. This man really is a godsend. I’m a more visual learner but also need someone to draw and be a bit more methodical. Lectures don’t have time to do all this and simple speak out the details from PowerPoint presentations. If this dude was my lecturer, I would be breezing through the semester from the start. I continually direct colleagues to his videos as they really do help work through the concepts. Instead of memorizing, I’m understanding which is helpful for explaining and figuring out pathologies. Medicine involves understanding these scientific concepts but also being able to apply them to when something goes wrong in a patient. If you don’t understand why and what should happen when the human body does its job correctly, you won’t be able to diagnose and possibly treat cases where the human body doesn’t do its job. I also want to say that I love his energy and how he’s just as excited and nerdy about science as we are. I watched the sympathetic alpha/beta receptor video the other day and literally went “Wow the human body is cool!” when it all clicked for me. If you see this Ninja Nerd, I would like to thank you.

[@sciencegeek8895]

reading this reminded me of myself i am also kinda visual learner i imagine most of the things most of the times i just love the way he describes the things which we find difficult to imagine

[@rishitaaggarwal5874]

I have not yet joined my medical school due to the delayed admission process and still, I can understand each and every stuff. You are a great teacher and professor for sure. Your lectures are blessings to many. Thank you !!

[@ahmetsezer7591]

Zack please keep doing what you do, we need you more than anything man 😍

[@AnDrEa391000]

My goodness! I cannot express how helpful your videos are and how thankful I am to have come across your channel. I get so much from your videos than I have gotten from the awfully expensive and pointless textbooks I've read throughout my career. Seriously love this!❤

[@anonymouschicken2727]

You are literally carrying me through PA school right now. Thank you so much!

[@ShadeTreeCardiology]

Not only do you give good content but, you draw the way I wish I could when I teach this. I searched to see what was out there and sharpen my own edge and I love what you're doing. It wasn't just a review of info for me. It was a review on how to teach. Please keep doing what you're doing.

[@lyndseychilds625]

This is amazing. Thank you for breaking each part of the wave down first. This step by step drawing along with a basic understanding commentary. Thanks guys! You’re my hero!

[@haiwatigere6202]

Iso electric line explained so beautifully.and I have been saying raised ST segment for years!

[@evgeniyaorinina7314]

Thank you for making it so easy to understand, you don’t even know how grateful I am that I found these videos. I’ve been struggling with this for months. I can’t thank you enough!

[@arqamhusain9357]

Amazing explanation of EKGs! You explained it in a way that makes so much sense. You're the GOAT Zach and among the greats of medical education like Dr. Sattar and Dr. Ryan!

[@guliaabidova514]

Can't find a word that capable enough to describe your talent in teaching. I only wish I had found you earlier, you are an absolute pro in making hardest things into easy to understand. Forever grateful to you xxx

[@jessewallace12able]

I’m a RN student. I can’t understand what I’m being told about EKG. Now watching this, I understand. REALLY OUTSTANDING teaching.

[@niklaschiglinsky9320]

I am a nurse in a heart ward in Sweden. Been working there for 2 years since i got My license. Awsome lecture! Keep up the good work. Very understandable for people that have a basic understanding of how the heart works!

[@anamarr4893]

Left ventricle be thick. Seriously, though, you’re doing such a great job. Thank you.

[@youssefdehaini4160]

You sir are amazing. Thank you. I'm writing this comment halfway through the video. I'm not even done, but I understand. That's how effective and amazing this was! What a legend!

[@jhan168]

I watch all your ads to support you and also as a way to take a little break to absorb the info. thank you so much for this amazing lecture!!

[@arpitjaiswal021]

This video is blessing to all medical students on entire globe. Thank you so much sir "IT HELPED" 🙏🙏

[@Clinical1114]

A single word is unable to explain your efforts . I really appreciate your hard work , kindness , Thanku sir for making everything so easy to understand ❤️❤️❤️❤️

[@ahmedabdallah2002]

Professor zach I'm one of million of students around the world who they don't have good quality education but you make it really easy for us we are very grateful 🙏 thank so much the way you explain the Ekgs it's more then wonderful I understand every single word you said instead English is not my first language but I can understand you very well I always recommend my friends about your lectures I'm they aslo enjoying study like I do ..... next week my university will open and we are going to start with cardiovascular system 🙏🙏 thank you thank so much.

[@ForceGraphicsTM]

Dude I am a med student in Brazil and I had a reverse class about ekg today, me and my group had to explain the exact same thing you explained in the video. I'm happy cause we did an explanation very similar to yours. Great class, love your videos, keep up the amazing work

[@Maria-fo1si]

I got a huge mark in Physiology thanks to you!( having watched the old EKG videos)

[@deirdremartinez2905]

thank you so much for this lecture on reading and interpreting 12-lead EKGs...due to COVID, we are learning online, and I am having to self-teach a lot of concepts. BUT with your NINJA help I feel like I'm not alone.

[@Sarah-el5bg]

never get tired of some good ekg lectures, thank you for everything you do ❤️

[@Meowmeowmeow14325]

I have been learning ECG since I was in high school...trust me I never knew that it was this easy...I mean it isn't but this man made it easy...The reason my med school life is going super smooth is nina nerd

[@rainaghosh8363]

What are the odds that you upload this awesome video when I'm struggling with ECG in my first year for the first time ever?

[@garrettmorgan9926]

Clear, concise, and in a basic format understandable to both beginners and experts. Oh yeah, and without the pompous fluff (medical school I'm looking at you)! Thanks, man! You're a credit to your field. They are lucky to have you!

[@xcriss2898]

Loved this: ”We all are engineers here”. 😆 As an engineer and not a doctor, I discovered in a very technical manner how the heart functions. Well done, Zach&NN!

[@미국간호사길라잡이]

The best EKG lecture of all in my entire 18 yrs of nursing career!!!! I appreciate your effort in making "easy to understand" lectures!!!

[@miruthulathanigasalam9235]

I've been avoiding ECG for quite some time , infact didn't watch your previous video completely either. But now looks like the universe really wants me to study this😂

[@NinjaNerdOfficial]

We have complete confidence in you, Miruthula! 😀

[@saendriy-n]

Yes miruthula u got this 👍

[@voxnihili7097]

I can relate. I have to pause every 2 minutes. SO much information.

[@waschbardachsmilch9873]

Yes, you got this, Miruthula!!

[@drews6770]

KZbin Algorithms?

[@nathanhoggan6733]

I have been looking for a cohesive explanation like this for weeks. This is a wonderful gift. Thank you sir.

[@dr.daniyalshahid4969]

Thank You for making me revise all the stuff! perfect video and the way of teaching.

[@Idkijustlike2useYoutube]

You have such a direct and crystal clear way of explaining. Its amazing. Really works for me

[@aishashaaban695]

Thank you 😮❤ You’ve made cardiology better for me. I really had a hard time understanding vectors and ecg but you made it easier.

[@XXJeremiahAXX]

I genuinely cannot thank you enough for all of your videos! You are the reason I am able to pass my anatomy and physiology tests. Thank you, thank you, thank you for taking the time and effort to explain these concepts in a way that makes sense.

[@mostafizurrahmanjhalak8629]

i cant blv this lecture is free!! well its true what they say..essential things i mean really important things r free .u my sir r precious. nobody taught me ecg like u did sir.THANK YOU!!

[@blightu]

you are singlehandedly responsible for training countless people to save lives. thank you so much for what you do.

[@ada_ada_ada_ada]

Thank you so much for everything! This channel is a lifesaver!! 💜

[@brettpblair]

This video was far more informative and easier to follow than the older version. I learned a lot. Thank you!

[@SAmes-tz4mn]

Yay an updated one! Your older EKG videos got me through physiology ❤️Aced that class thanks to y’all

[@elijah1110]

Sameee

[@HanaMohamed-nk8ce]

This is the best EKG video I’ve ever watched in my whole entire life

[@tomaszsmol3920]

22:15 for all who want to hear how thicc the left ventricle is 😂

[@tokumagirma8204]

it would be difficult for me to express my happiness i get after seeing your lecture! you are given this quality naturally and you share it for us for free god bless you sir!